2026-09-05 daily answer

Step-by-step reasoning

1. Region 6 has only one safe cell left: R6C7.
2. R6C7 rules out cells in its row, column, color region, and touching neighborhood.
3. Region 7 has only one safe cell left: R7C3.
4. R7C3 rules out cells in its row, column, color region, and touching neighborhood.
5. Region 8 has only one safe cell left: R8C9.
6. R8C9 rules out cells in its row, column, color region, and touching neighborhood.
7. Region 9 has only one safe cell left: R9C4.
8. R9C4 rules out cells in its row, column, color region, and touching neighborhood.
9. A cat at R1C1 leaves no valid completion, so exclude it.
10. A cat at R1C2 leaves no valid completion, so exclude it.
11. A cat at R1C5 leaves no valid completion, so exclude it.
12. A cat at R1C6 leaves no valid completion, so exclude it.
13. Row 1 has only one safe cell left: R1C8.
14. R1C8 rules out cells in its row, column, color region, and touching neighborhood.
15. A cat at R2C1 leaves no valid completion, so exclude it.
16. A cat at R2C2 leaves no valid completion, so exclude it.
17. A cat at R2C6 leaves no valid completion, so exclude it.
18. Row 2 has only one safe cell left: R2C5.
19. R2C5 rules out cells in its row, column, color region, and touching neighborhood.
20. Column 6 has only one safe cell left: R4C6.
21. R4C6 rules out cells in its row, column, color region, and touching neighborhood.
22. Row 5 has only one safe cell left: R5C1.
23. R5C1 rules out cells in its row, column, color region, and touching neighborhood.
24. Row 3 has only one safe cell left: R3C2.